Telescopically collapsible umbrella



May 3, 1932. H. HAUPT TELESCOPICALLY COLLAPSIBLE UMBRELLA Filed Dec. 26,1928 Patented May 3, 1932 UNITED STATES PATENT OFFICE runs mom, orBERLIN, enmumr mnnscorrcanmr conmsnarn UMBRELLA Application med December26, 1928, Serial No. 828,410, and in Germany January 3, 1828.

My invention relates to folding umbrellas having the frame arms or ribsconnected to the bracing rods or stretchers by means 'of pivot pinswhich are slidable 'on the upper 6 parts of the ribs and are secured inoperative position to the said ribs by means of locking devices againstwhich the bracin rods are adapted to bear and disengage t e lockingdevices on the bracing rods being moved so as to lie alongside the ribs.

The main feature of the present invention consists in this that thelocking members comprise locking pawls rotatable on the pivot pins withtheir locking noses engaging in the inside of the U-section frame arms,

said locking pawls having spring pressureexerting members acting on themso as to urge the said noses towards the frame arms, so that on thepawls being released from their locking engagement with the frame armsthe said noses will be able to travel in the inside of theU-sectionframe arms and will thereby not project from the frame arms anddamage the covering of the umbrella.

I will now describe my invention more in detail in connection with theembodiment thereof illustrated somewhat diagrammatically on theaccompanying drawings, it being intended and understood that theinventionis illustrated by, but not limited to, the embodiment thereofso illustrated and described. b

In the accompanying drawings forming a part of this specification andshowing for purposes of exemplification, a preferred form and manner inwhich the invention may be embodied and practiced but without limitingthe same to such illustrative instance:

Figure 1 is a view in longitudinal section of an umbrella constructed inaccordance with the present invention, the cloth covering beingindicated by a single line and one of the several arms or rays of theframe only being shown for clearness sake; Figure 2is a view similar toFigure 1, but of enlarged scale and showing the umbrella stick intelescoped condition and the frame arm in fully collapsed condition,While the lowermost tubular member of the stick forming the handle isillustrated in section; Figure 3 is a sectional view, on an enlargedscale, of certain parts shown 1n Figure 1, while the umbrella is closed;Figure 4 is a sectional view, on an enlarged scale, of the same parts,when the umbrella is open; Figure 5 is a view in longitudlnal sectionand on an enlarged scale of the two meeting and interconnected ends ofthe two channeled members oonstitutin a frame arm or rib with thebracing mem er or stay rod .pivotally attached thereto; and F1gure 6 1sa cross-section of the upper or inner channeled member of a frame arm.

In the embodiment shown in the drawings the umbrella stick issubstantially composed of three constituent parts 1, 2 and 3 adapted tobe telescopicall pushed together as usual 1n umbrellas 0 this type, atubular handle 4 forming, in addition thereto, a fourth part or memberof the stick. When the stick is pulled out, as shown in Figure 1, thehandle 4 will be locked by a spring detent 5 which is secured, togetherwith a guiding dlsk or ring 6, to the lower end of the intermediatestick member 2. The lower part 3 of the stick is firmly connected withthe bottom end of the handle 4. The parts 1 and 2 of the stick adaptedto be telescopically pulled out, are interlocked, when in pulled outcondition, by a spring-controlled lockin pawl 7 which is pivotallyattached to and within the upper end of the tubular stick member 2 andadapted to be withdrawn from looking engagement with the part 1, by theupper end 8 of the part 3 engaging over the depending wedge-shaped nose9 of the pawl 7 so as to turn the latter against the action of thespring thereof, whereupon the end 8 of the part 3 engages the face 10 ofthe pawl ere the part 2 reaches its fully telescoped position on thepart 3.

The arms of the umbrella frame consist each of two channeled bars 12 and13, the upper end of the bar 12 being hinged to a ring 11 of the part 1in the usual manner. The two bars of the arm are so interconnected as toallow of telescopic movement, a sleeve or ring 14 being firmly connectedwith the lower end of the bar 12 and a U-shaped member 15 being disposedon the upper end of the bar 13 of the arm for that purpose. The member15 is not fixed to the bar 13, but surrounds a pivot pin 16 connectedwith the latter, and affords a means for the attachment of. the wovenmaterial or covering 17. The upper end of the bracing rod 18 is pivotedon the pin 16 and the lower end thereof pivotally connected with thesliding sleeve 19, as usual. A spring split sleeve 20 is provided on thebar 12 o the stick for locking the sleeve 19, when the umbrella isspread out by moving the sleeve 19 on the stick over and beyond thesleeve 20, as usual. When the umbrella is in fully collapsed andtelesooped condition, the sleeve 19 will be locked by twospring-controlled pawls 21 and 22 pivotally connected with lugs providedon the guiding disk 6.

According to the present invention the arm member or bar 13 is locked orsecured in its outward position, shown in Figure 1, by a pawl 23pivotally mounted on the pin 16 and having a nose 25 adapted to catch,under the pressure of a spring 24, into an aperture 26 rovided in theback or web of the channel bar or member 12, as will be readilyunderstood on inspection of Figure 5, so that the bars 12 and 13 willconstitute a rigid unit when the umbrella is spread out or opened,whereas when the umbrella is closed and fully collapsed, so that thebracing rods 18 lie approximately parallel to the members 13, asindicated in dash lines in Figure 5, the rod 18 will engage the tail 27of the pawl 23 with the result that the nose 25 of the latter iswithdrawn from the aperture 26 and the arm member or bar 13 releasedthereby.

The tail 27 of the locking pawl 23 has at its end a hole through whichthe adjacent end of the spring 24 is passed so as to secure the said endof the spring.

The herein described construction is of particular advantage inasmuch asin the releasing action, the movability of the pawl 23 about the axis ofrotation or pin 16 can be utilized to a high degree, since the nose 25of the pawl is adapted to move in the cavity of the channeled bar 12 andthereforeprevented from projecting too far through the aperture 26 anddamaging the covering 17. Further the comparatively extensive rotarycapability of the pawl 23 operating under spring action against thebracing rod 18, involves the advantage of resiliently holding the armmember or bar 13 widely apart from the rod 18 during the manipulation ofclosing the umbrella, as shown in Figure 1, so that the hollow handle 4can be readily shifted on to the stick while engaging between theseveral rods 18 and arms 12, 13, without hampering. Furthermore, it isfeasible and advisable to adjust the pawl 23, owing to the extensiverange of movability thereof, in a manner that the nose 25 of the pawlwill be fully retracted and disengaged from the aperture 26 andconsequently the arm members 12 and 13 unlocked, when the open mouth ofthe handle 4 commences to grip and enclose the lower ends of the bracinrods 18 and the members 13 are only slightly approached thereby towardsthe rods 18.

Though I have described with great particularity of detail a certainspeci c embodiment of my invention, yet various modifications in detailand in the arrangement and combination of the parts shown and describedmay be made by those skilled in the art without departure from theinvention What I claim is:

1. In an umbrella of the class described having a handle and a coveringtherefor, an upper U-section frame arm pivoted to the said handle, alower U-section frame arm slidably mounted in the upper frame arm, abracing rod pivoted to the handle, a pivot pin connecting the bracingrod and the lower frame arm together, a locking pawl revolubly mountedon the pivot pin, a nose portion on the pawl for locking the frame armsin extended position, of sufficient length to remain within the interiorcross-sectional area of the frame arms, for preventing the tearing ofthe umbrella covering, while the frame arms are reciprocating upon eachother, automatic means for normally pressing the pawl into lockedengagement, and means for releasing the automatic pressing means by theaction of the lower frame and bracing rod when the umbrella is placed ina closed position.

2. In a device of the class described havin a covering thereon, an upperframe arm 0 U-shaped cross-section, a lower frame arm of similarcross-section adapted to reciprocate within the upper frame arm, abracing rod in association with the frame arms, a pivot pin connectingthe bracing rod and the lower frame arm together, a locking pawlrevolubly mounted on the pivot pin, a nose portion on the pawl forlocking the frame arms and bracing rod in locked position, and of.sufficient length to continuously operate within the interiorcross-sectional limits of the U- shaped frame arms, and automatic meansfor normally pressing the pawl into locked position, and means forcontrolling and releasing the said automatic pressing means by theaction of the bracing rod and frame arms, when the umbrella is placed ina closed position.

3. In an umbrella of the character described having a handle therefor,the combination with a U-section frame arm pivotally connected to saidhandle, a bracing rod pivotally connected at its lower end to saidhandle, a pivot pin slidable on the upper part of said frame andconnected to the upper end of the bracing rod for connecting the framearm and bracing rod together; of locking means for securing said pivotpin in operative position, comprising a locking pawl serving for lockingthe pivot pin and rotatable about the latter, said locking pawl having anose adapted, on being disengaged, to

lie inside the interior of the U-section frame arm and to remain in theinterior during the sliding of the pivot, a spring pressing the lockingnose into locking position, the said pawl being actuated by the bracingrod in the closing of the umbrellato release the pivot pin for slidingmovement.

4. An umbrella as claimed in claim 3, in which the nose of the lockingpawl in the locking position extends from the interior bottom surface ofthe U-section frame arm to the surface of the upper face of said framearm.

HANS HAUPT.

